This is my first time asking a question on here-- well it here it goes.

1 answer:

5 0

I just learned about the law of sines but here's what I think the answer is We must first find A and B using right angles. 90-35=5523+90=113Then find C so that we can have one full set with both the angle and the corresponding side. 113+55=168180-168=12C is 12. Now use the law of sines. 146/sin(12)=x/sin(113)Were using 113 because that is the corresponding angle to the side we are looking for which we can say is b. Solve for x by cross multiplying. 146*sin(113)=134.393708604. 134.393708604/sin(12)=646.39803599 which I believe is the answer.

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A(3,4) and B(-3,2) are pointd on a coordinate plane. find the coordinate of a points C on the x axis such that AC=BC

mr Goodwill [35]

Answer:

Step-by-step explanation:

Here's the game plan. In order to find a point on the x-axis that makes AC = BC, we need to find the midpoint of AB and the slope of AB. From there, we can find the equation of the line that is perpendicular to AB so we can then fit a 0 in for y and solve for x. This final coordinate will be the answer you're looking for. First and foremost, the midpoint of AB:

and

Now for the slope of AB:

and

So if the slope of AB is 1/3, then the slope of a line perpendicular to that line is -3. What we are finding now is the equation of the line perpendicular to AB and going through (0, 3):

and filling in:

y - 3 = -3(x - 0) and

y - 3 = -3x + 0 and

y - 3 = -3x so

y = -3x + 3. Filling in a 0 for y will give us the coordinate we want for the x-intercept (the point where this line goes through the x-axis):

0 = -3x + 3 and

-3 = -3x so

x = 1

The coordinate on the x-axis such that AC = BC is (1, 0)

7 0

2 years ago

What is |-8| 0-16 O 8 O 8 O 16